On This Day

Royal Greenwich Observatory is established in England by King Charles II

The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux)...

The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north. It played a major role in the history of astronomy and navigation, and because the Prime Meridian passed through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory code of 000, the first in the list.

Key People

Charles II

Events Before

  1. Dutch Republic formally cedes New Netherland to England, who rename it New York

    Dutch Republic formally cedes New Netherland to England, who rename it New York

  2. English reconquer NY from Netherlands

    English reconquer NY from Netherlands

  3. Ambon earthquake and megatsunami kills at least 2322 people in the Maluku Islands (modern Indonesia), tsunami reaches he

    Ambon earthquake and megatsunami kills at least 2322 people in the Maluku Islands (modern Indonesia), tsunami reaches height of 100 meters (330 ft) [1]

  4. Dutch Republic and England sign Treaty of Westminster, ending the Third Anglo-Dutch War; North American colony of New Ne

    Dutch Republic and England sign Treaty of Westminster, ending the Third Anglo-Dutch War; North American colony of New Netherland returned to British [OS date, 02-09 NS]

  5. Netherlands and Münster sign peace treaty

    The Peace of Breda, or Treaty of Breda was signed in the Dutch city of Breda, on 31 July 1667.

Events After

  1. Battle of Öland: allied Danish-Dutch forces defeat the Swedish navy in the Baltic Sea, during the Scanian War (1675–79)

    The Scanian War (Danish: den Skånske Krig; Norwegian: den skånske krig; Swedish: Skånska kriget; German: Schonischer Krieg) was a part of the Northern Wars involving the union of Denmark–Norway,...

  2. Feodor III succeeds his father and becomes Tsar of Russia

    Alexei Mikhailovich, also known as Alexis, was Tsar of all Russia from 1645 until his death in 1676.

  3. King Philip's War: a force of 1,500 Wampanoag, Nipmuc, and Narragansett Indians kill over 30 men and destroy buildings i

    King Philip's War: a force of 1,500 Wampanoag, Nipmuc, and Narragansett Indians kill over 30 men and destroy buildings in Lancaster, Massachusetts

  4. Sudbury, Massachusetts, attacked by Indians

    The Sudbury Fight (April 21, 1676) was a battle of King Philip's War, fought in what is today Sudbury and Wayland, Massachusetts, when approximately five hundred Wampanoag, Nipmuc, and Narragansett...

  5. Battle of Etna - Netherlands and Spain vs France, M de Ruyter fatally wounded

    Battle of Etna - Netherlands and Spain vs France, M de Ruyter fatally wounded

More from the 1670s

Frequently Asked Questions

What happened on June 22, 1675?
The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north. It played a major role in the history of astronomy and navigation, and because the Prime Meridian passed through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory code of 000, the first in the list.
Why is Royal Greenwich Observatory is established in England by King Charles II historically important?
It played a major role in the history of astronomy and navigation, and because the Prime Meridian passed through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory code of 000, the first in the list.
Who was involved in Royal Greenwich Observatory is established in England by King Charles II?
Key figures include Charles II.

Explore More